Double lock



Feb. 9 1926 1,572,077

F. HERNANDEZ Y PEREZ DOUBLE LOCK Filed Nov. 11, 1924 2 Shets-Sheet 1 Feb, 9 1926.-

F. HERNANDEZ Y PEREZ DOUBLE LOCK Filed Nov. 11, 1924 2 Sheets-Sheet 2 Patented Feb. 9, 1926.

UNITED ,s raras raanorsco HERNANDEZ 9 1,572,077 PATENT OFFICE,

PEREZ, or HABA A, CUBA.

DOUBLE LOCK.

Application fi1ed Noveinberll, 1924. Serial No. 749,290.

'- may be effectually locked in such position,

and prevented from being moved to unlocking position by a person on the outer side of the door.

With the above and other objects in view the invention consists in 'the construction, combination and arrangemenuof devices hereinafter described and claimed.

In the accompanying drawings:

Figure 1 is an elevation of alock con-' structed and arranged in accordance with this invention, I

Figure 2 is a plan ofthe same.

Figure 3 is a vertical longitudinal sectional view of the same on the plane indi cated by the line 33 of Figure 2.

Figure 4: is a horizontal sectional View of the same on the plane indicated by the line 4 i of Figure 3.

Figure 5 is a similar view of the same on the plane indicated by the line 55 of Figure 3.

The lock case 1 is provided with a removable base plate 2, its inner side being open to receive said base plate. The case is also provided on its closed or outer side, at its front end with an extension 3 which is arranged at right angles with respect to the case and which is hollow to form a chamber 4:. A slot 5 is provided in the inner side of the extension 3 and extends partly through the top of the lock case. .he base plate 2 is provided with lugs 6 which bear against the inner sides of the side walls of the lock case and are secured thereto by screws 7, lugs 8 being also provided at the front end of the base plate and which bear against the corresponding wall of the lock case and are secured thereto by screws 9.

A bolt 10 which in plan is substantially T-shaped, is arranged to operate in an opening 11 in the front wall of the lock case.

A pair of rods 12 are secured to opposite sides of the bolt head as at 13'and extend rearwardly therefrom in the lock case and are provided at their innerendswith tappet bars 14- which are at right angles thereto. These rods are longitudinally movable through openings in'a guide bar15 the ends of which are arranged in recesses in inwardly extending lugs 16 with which the side walls of the lockcase are provided. Coiled extensile springs 17 arranged on the said rods, bear between the bar 15and the rear side of the head of the bolt, and act to project the bolt and normally hold thesame in latching position. On its outer side thebolt is provided with a latching arm 18 which is arranged partially in the chamber 4; and is movable in 'the slot 5 and has a head 19 which projects out through an opening 20 in the front wall of the chainber 4. The said .head has an inclinedcam face 21. I

A knob'22 is provided with a. tubular shank 23 which is rotatably mounted in an opening 2am the lnner side-0t the lock case. A bearing member 25 1s arranged in line with the shank 23and is revolubly'mounted at the base 2 of the lock case and is provided with an opening through which extends a key actuated operating bar 26. A cam 27 is secured to the inner end of said bar for operation thereby and a similar cam 28 is secured to the inner end of the shank 23 by a head screw 29 which is threaded in the inner end of the shank as shown, the said cams 27, 28 being arranged in spaced relation and respectively near the base and top or outer side of the lock case. Each of the said cams has oppositely extending arms 30 which bear against and are slidable on the tappets 14 of the rods 12, so that when either the knob 22 or the bar 26 is turned, one of said cams is correspondingly turned and one of the arms 30 acts upon the tappet- 14. of one of the rods 12 to cause said rod to withdraw the bolt 10 against the action of the spring 17 as will be understood.

Any suitable key operated means may within the scope of this invention be employed in connection with the bar 26. For the purposes of this specification I show in Figure l a key operated assembly 31 such as is employed in an ordinary Yale lock and including tumblers 32.

It will be understood from the foregoing that the lock may be operated from within e is lepp ie e vng .elei e A he door jwhi hh h leek is app ie re che wh i y 10eel .pe it 10n the uter eh ie th -..h l0 h' egee. n slides .ie e th iammihg hrfao'e' 36 of the keeper so that Saiclbolt is mov d inw rdly ween xten aga t the eheieh 9f he. spring 1 e dt e rn: su f 1 of la he il tehihg h e A9 a the engege th am ehltfael 36 n he eae e t eih l il.

toeb mo ed e hlie et ylt the xt n e its, hw d vementhnh eth 'heed"l reg st s wit ehereeeee3 atmh eh h i h i he h l he d :10 elee ii e e ers' ththe K69S$34 se he the late-h ng head ,1 and th l ckin he hhe d l .ar t en.m eehlwitl the bel toip iejee edpeeit and in ,engeg me 7 p i y wi h the fee ee e 3 heis eleei' y Shown inie- To enable the bolt to be looked so that it oannot be operated [from without 1 p110- Yid h pleek el 3 .iyhi h is el l'eb y' mee ed ne el he 2221s i fi= 8i IL IP Yide w t tep er owhieh he J rehgedih ei he of Pe r'tef. ches s et 40,

ed in fhheh hie 41. with which the knob ispl oyided, the said he fh 'ei .hhvihgh e 1 :2 whic 'en t hG Q I' Q S SlOtS and which serves to clear the arm 39 when the bolt 87 is being moved to 'eitherlooking oi" 1ele'asing position. The sai dbolt 37 when in locking position engages wear-m 18 of the latch bolt 10 and passes tl on gh the slot shown in Figures 1 and Vhile I have he ein shown and described iprefexfred"emhedimen i f my i ye -ie I weuld ha e it uhdereee e theeiehen e ma be made in thei eem, "R PPQE QI hi d e ruetien h .eevere e e'ilwhh he d part n -hem. th .spiri hi m nven and Within the scope of the apnengledolairn.

thu deeerihed hy' ihite h h I cla-im; v

Thie he .eleeeisleeerihed e eaeh g, t eech heltz ee tee er ove en t ere evi g .e eekiheh ed e d he e le ehih hee sihd ebeh h i ee l having .2 ee iiee 7s ,v o e e... ei 'en e eihe -.by he leekih hee e reeee ie o e e eh ehhhy th leteh geh and also having a. camining sui face'to' 'coere e with h eem he f th i etehi ead, means ihe e his .e kn b t .epe ete,

t idlit illgrhQkl {1 13 e hiee heh meeh 'l 'ee ed f r lengih dinal movement in e t l r gli i'eotionto hold a d et... me h h sh mteieee s n eit en e to .r .em1, e. :eleeee Q h e lhe- In Witness whereof I affiix my signature; SFWEQP-JESNQ PP A 1 3 5 

